THE ECONOMIC EFFECTS OF POOR AND FLUCTUATING IRRIGATION WATER SALINITY LEVELS IN THE LOWER VAAL AND RIET RIVERS
In the Lower Vaal and Riet Rivers, changing irrigation water quality has raised concern about the long-term sustainability of irrigation due to reduced yields of certain crops and the withdrawal of some very profitable crops. The main aim of this study is to develop and apply models to determine the...
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Format: | Others |
Language: | en-uk |
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University of the Free State
2007
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Online Access: | http://etd.uovs.ac.za//theses/available/etd-12062007-084412/restricted/ |